煤田地质与勘探Issue(3)：96-99,4.DOI:10.3969/j.issn.1001-1986.2014.03.022
确定卸压瓦斯抽采钻孔合理层位的试验
Experimental study on determining the rational horizon of pressure-relief gas extraction boreholes
摘要
Abstract
The key of the technology for pressure relieving drainage lies in decorating gas extraction hole reasona-bly based on the distribution rule of mining-induced fractures field. Aimed at thick coal seam enriched in water for large mining height and rapid development, on the basis of the characteristics of space-time evolution of min-ing-induced fractures and gas migration rule, the commercial test of the technology of pressure relieving drainage for reasonable horizon was confirmed in Nanting mine. According to the statistical analysis of different extraction concentration, the effect for end hole of pressure relieving drainage hole in the extraction zone of fissure zone was the best, so the reasonable horizon of pressure releasing gas drainage hole was determined.关键词
覆岩运动/裂隙演化/卸压抽采/钻孔层位Key words
overlying strata movement/fracture evolution/pressure relieving drainage/hole horizon分类
天文与地球科学引用本文复制引用
梁冰,赵海波,王岩,袁欣鹏..确定卸压瓦斯抽采钻孔合理层位的试验[J].煤田地质与勘探,2014,(3):96-99,4.基金项目
国家重点基础研究发展计划(973计划)项目(2011CB201206)；国家自然科学基金青年科学基金项目(50904033)；辽宁省自然科学基金项目(20102090) （973计划）
